On Jan 18, 2013, at 14:47 , O. Olson wrote: > I am new to > Solr (and Velocity), and have downloaded Solr 4.0 from > http://lucene.apache.org/solr/downloads.html. > I started the example solr, and indexed the XML files in the /exampledocs > directory. Next, I pointed the browser to: http://localhost:8983/solr/browse > and I get the results along with the search and faceted search functionality. > I > am interested in learning how this example works. I hope some of you can help > me with the following questions: > > 1. In > this example, we seem to be using the Velocity templates in: > /example/solr/collection1/conf/velocity. > The overall page at http://localhost:8983/solr/browse seems to be generated > from browse.vm - which seems to include (parse) other > templates. My question here is that I see things like > $response.response.clusters > – Where can I know what properties the “response” object has, or the > “clusters” > object has?
Great question. $response is as described here <http://wiki.apache.org/solr/VelocityResponseWriter#Velocity_Context> You can navigate Solr's javadocs (or via IDE and the source code as I do) to trace what that object returns and then introspect as you drill in. I often just add '.class' to something in a template to have it output what kind of Java object it is, and work from there, such as $response.clusters.class > Also there seem to be some methods like display_facet_query() – > where is this defined. Is there some documentation for this, or some way I can > find this out? I might need to modify these values, hence my question. (I am > completely new to Velocity – but I think I get some idea by looking at the > templates.) display_facet_query is a macro defined in velocity/VM_global_library.vm, which is the default Velocity location to put global macros that all templates can see. > 2. In http://localhost:8983/solr/browse page, we have a list of Query > Facets. Right now I just see two: ipod and GB? > How are these values obtained? Do they come from elevate.xml?? Here I see > ipod, > but not GB. They come from the definition of the /browse handler (in other words, just arbitrary query request parameters but hard-coded for example purposes) as: <str name="facet.query">ipod</str> <str name="facet.query">GB</str> The Velocity templates (facet_queries.vm in this case) dynamically generates the link and count display for all facet.query's in the request. Erik
